After thinking all night why my paint finish didn't come up to scratch, I thought I might have left the wrong needle set up in the airbrush, but checking this morning, it wasn't, anyway it was all flatted down last night and washed in warm soapy water and left to dry, go on with it this morning, and after a little bit of playing around thinning the paint a little, I got a much better finish, it will need to dry out for a few days before I crack on with the polishing ....